Perforating apparatus.



Pa te nte'd Dec. 28,1909.

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l/VVE/VTOR WITNESSES p 4 44 lfgfilwf Aha/Mfr mnnzw, a email rmriurmms'P. E. D?HUMY. PERFORATING APPARATUS. APPLICATION FILED JUNE 25, 1909.

944;, 6 1 2. Patented. Dec. 28, 1909.

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.WITIVE;E8: i I I WWW ATTORNEY UNTTE FERNAND E. DI-IUMY, OF ENGLEWOOD,NEW JERSEY.

PERFORATING APPARATUS.

To all whom it may concern:

Be it known that I, FERNAND E. DHUMY, acitizen of the United States, anda resident of Englewood, in the county of Bergen and State of NewJersey, have made certain new and useful Improvements in PerforatingApparatus, of which the following is a specilication.

This invention relates to telegraph appa ratus in which a perforatedstrip is manually prepared at the transmitting station and is reproducedelectro-magnetically at the distant station, where it is passed througha local circuit and transcribed by an operator.

The object of this invention is to simplify and improve the apparatusfor perforating the tape. The paper tape is advanced at a uniform rateand perforated in two lines near opposite edges so that a perforation inone line followed by a perforation in the other line marks the beginningand termination of a dot or dash, depending upon the distance separatingthe perforations. These perforations are made by a sharp tubular punchand are circular and of small diameter. The punches are operated by anelectromagnet. There are two punches, one for each line of holes, eachpunch is operated by an electro-magnet and it is necessary to give eachpunch a short, rapid movement down and back as the progressive movementof the tape is not halted when the perforation is made. In myimprovement the two electro-magnets are placed in one circuit, they areoppositely polarized and the first punch is operated by a short electricimpulse of one polarity and the other punch is operated by a shortelectric impulse of the opposite polarity. A Morse key is used toperforate the tape, the key is manipulated by an operator employing theMorse code consisti11 of dots, dashes, and spaces. This Morse key is ina local circuitwhich includes the primary of an induction coil, thesecondary coil is in circuit with the punching magnets; when theoperator closes his key an impulse of one polarity is induced in thesecondary or punching magnet circuit, when the operator opens his key animpulse of opposite polarity is induced in said secondary circuit. Oneimpulse operates one magnet, the other impulse operates the othermagnet, so that first one punch is operated and then the other punch isoperated, the two punches, as described, thus marking the beginningSpecification of Letters Patent.

Application filed June 25, 1909.

Patented Dec. 28, 1909. Serial No. 504,244.

and termination of a dot or a dash depending upon the time intervalseparating the down-stroke and the up-stroke of the Horse key.

The accompanying drawings illustrate the invention. Figure 1 shows apair of electromagnetic punches, operated by a Morse key, through aninduction coil, by polarized re lays. Fig. 2 shows a modification inwhich the Morse key operates to reverse the polarity of the circuitthrough the primary coil. Fig. 3 shows a modification of the means forreversing the polarity of current in the primary circuit. Fig. 4 shows apole changing transmitter and a condenser in circuit with the relays.Fig. 5 is a'modification of Fig. 1 showing the relays polarized by localcircuits.

In Fig. 1 there is a paper tape 6 to be perforated with holes, in twolines, as 20, and g; tape 6, is advanced by a motor-driven train ofwheels suitably regulated and represented by the rollers 10. There aretwo tubular punches c and reciprocating in suitable guides g, each punchis jointed to a pivoted lever 0, which is spring retracted; One le ver 0is operated by magnet m, the other lever 0 is operated by magnet a,magnet m is in circuit 34 electrically connected to the contact point 37of relay 8; magnet 17, is in circuit 35 connected to contact point 36 ofrelay 1. The relays r and s are polarized, relay 7 has an armature lever00 operating to make and break the circuit 33, 36, 35, relay 8 has anarmature lever y operating to make and break the circuit 33, 3'7, Thecoils of relays r and s are in circuit 32 with the secondary Z) of aninduction coil; Morse key 76 is in a local circuit 30, 31, with primarycoil a in inductive relation to secondary coil 6. W hen the key /0 isclosed the establishment of a closed circuit through coil 64 induces ashort impulse of one polarity in secondary coil 6 and circult 32; as therelays r and s are oppositely polarized the described impulse operatesone relay and not the other so that, let us say, the magnet m isoperated and the punch f makes a movement down and up. lVhen the key isis opened and circuit in the primary coil a is broken the inducedimpulse in secondary coil 6 is of the opposite polarity and the otherrelay is operated, thus operating the other magnet 12, which depressesits punch c, said punch making a rapid down and up movement orexcursion. As well known the length of time the key 70 is ing acondenser (Z held depressed dot, or a dash, and the spaces betweenletters or the spaces forming part of a letter are characteristicallyindicated by the manipulation of the key it.

In Fig. 2 the key is in a local circuit 51 with magnet 50 which operatesa pole changing transmitter so that either the source of current h ofone polarity or the source of current of the opposite polarity isconnected in circuit with primary coil a the operation is otherwise likethat shown in Fig. 1.

In Fig. 3 there is an induction coil having a secondary Z) and theprimary coil is in two sections a and 0. The key L is in a local circuitwith the magnet 50; the armature bar of the magnet 50 is connected to asource of electricity and has a front contact 60 and a rear contact 61;contact 60 is in circuit with coil section 0 and contact 61 is incircuit with coil section a, the coils a and 0 are reversely connectedso that the same polarity of current will oppositely affect thesecondary I), it is another way of reversing the current through theprimary or exciting coil of the inductorium.

Fig. at shows the arrangement I prefer for practical operations, theMorse key It is in a local circuit with the magnet 50 of a polechangingtransmitter, which operates to throw current from either source h, j, ofopposite polarity, into the circuit 70, containin series with the coilsof the polarized relays 1 and 5'. I regard the condenser (Z as anotherform of inductive device in the circuit of the polarized relays r and sand I prefer it because it does not vary the electro-motive force andthe impulses are short and sharply defined and all of the same strengthand duration.

In Fig. 5 which is a modification of Fig. 1 the relays 1' and s have theusual coil 19 and a second coil 20 in a local circuit 21 so that therelay cores are permanently polarized.

\Vhat I claim and desire to secure by Letters Patent is:

1. In a perforating apparatus the combination of a suitable tape meansfor advancing the tape; two separate punching devices, an electro-magnetfor each punch; a circuit including a Morse key and the primary of aninduction coil and a circuit containing the secondary of said coil andsaid electro-magnets.

2. In a. perforating apparatus the combination of a suitable tape orstrip; a pair of punching devices, a magnet for each punch, a circuitincluding said magnets, a Morse key or transmitter, and means wherebythe movement of the key-lever throws induced determines the character ofa l impulses of opposite polarity into said magnet circuit.

3. I11 a perforating apparatus a suitable tape or strip; in combinationwith a plurality of punching devices, a magnet for each punching device,a circuit including said magnets, a Morse key or transmitter, and meanswhereby the movement of the key-lever throws a single induced impulseinto said circuiton its down-stroke and a single induced impulse ofopposite polarity into said circuit upon its up-stroke, substantially asdescribed.

t. In a perforating apparatus, the combination of a suitable tape orstrip, a pair of punching devices, a magnet for each punch, a circuitincluding both said magnets, a vibrating lever and means whereby themovement of the lever throws induced impulses of successively oppositepolarity into said circuit at the beginning and end of each vibratorymovement of said lever.

5. In a perforating apparatus the combination of a suitable tape orstrip, means for advancing it, suitable punching devices, electromagnetic means for operating the punches, a circuit for said means, aMorse key, a separate circuit therefor and a device for establishinginductive relations between said circuits.

(5. In a perforating apparatus the combination of a suitable tape orstrip, means for advancing it, suitable punching devices, electromagnetic means for operating the punches, a circuit therefor, a manuallyoperating circuit changing device, a separate circuit therefor,and-means for causing said circuit to act inductively on the first namedcircuit.

7. In a perforating apparatus the combination of a suitable tape orstrip, means for advancing it, a plurality of punching devices, anelectro-magnetic device for operating each punch, a circuit for saiddevices, a manually operated circuit-changing transmitter, a separatecircuit therefor, and means for causing one circuit to act inductivelyon the other circuit.

8. In a perforating apparatus the combination of a suitable tape orstrip, means for advancing it, suitable punching devices,electro-magnetic means for operating the punches, a circuit'for saidmeans, a Morse key, a separate circuit therefor and a condenserconnecting one circuit in inductive relation with the other circuit.

F. E. DHUMY.

Vitnesses THEODORE L. CUYLER, Jr., IV. B. VANSiZE.

